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Old 01-30-2008, 02:20 PM   #1
Wrinkleboi
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Default Just bought a TurboXS KnockLite, wanted to know how happy the car was more easily...

I guess this is borderline not-new-thread-worthy but it may open up a bit of discussion... and I'm posting this in the OS EMS forum because this is as much about knock notification in general as it is about the TXS unit specifically.

I came from the UTEC world, which is obviously much different than Enginuity. One of the things I miss the most was the feedback I got via the flashing CEL light when the ECU was seeing knock.
Now I am using Enginuity which is great and very powerful, and I know that it reacts well when it sees knock, but I still like to know whats going on, and I missed the flashing CEL. The other 'feedback devices' I have are:: boost, egt, oil press., aquamist dds3 alky, innovate xd-16 wideband.

When I have my laptop set up logging I set it up to 'warn' me about negative FKC and put the volume up, but its cumbersome and of course it only does this when I have my laptop in the car.
So after a bit of digging I decided to get a TurboXS KnockLite, which is actually a pretty trick little gadget. Its not just a $100 LED (which I had thought originally), its got a microprocessor built in to filter out 'bad' noise for a more accurate reading. It can also be used as a shift light which I don't care much about.

Anyone else using one of these, or share my desire for some sort of knock light in the system? Any chance that Enginuity could be set up to have the CEL or other similar light flash when it senses knock on a future release?
Any pictures of a KnockLite installed?
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Old 01-30-2008, 02:32 PM   #2
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I think I've found how to control the CEL for the 16-bit ECU in the past, but like many, many things I want to investigate/try, I haven't had time to mess with it.
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Old 01-30-2008, 02:57 PM   #3
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i know how it goes so i completely understand... i'm sure you keep very busy with all of this.
just wanted to make sure i was doing my part by trying to give good feedback.
bryan
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Old 01-30-2008, 03:57 PM   #4
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Quote:
Originally Posted by Tea cups View Post
I think I've found how to control the CEL for the 16-bit ECU in the past, but like many, many things I want to investigate/try, I haven't had time to mess with it.
Could you shed some light on the basic steps one would take to figure something like this out? Better yet, just an overview of how to go about reading the ECU logic, a roadmap of sorts.

So far, all I've managed to do is read anything I can find on openecu about the ecu images and a few failed attempts at using IDA to disassemble.
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Old 01-30-2008, 04:18 PM   #5
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Quote:
Originally Posted by ExpO View Post
Could you shed some light on the basic steps one would take to figure something like this out? Better yet, just an overview of how to go about reading the ECU logic, a roadmap of sorts.

So far, all I've managed to do is read anything I can find on openecu about the ecu images and a few failed attempts at using IDA to disassemble.
Openecu is place to start. There are threads from Calvin (of ecuexplorer) about the structure of 16-bit ECU maps and one from, I think, xswrex about the 32-bit ECU map structure. There's also some basic info on how to get started with disassembly and IDA. There's was also some posts at the Enginuity site (soon to be renamed and back up and running). That said, it is very time consuming work and no one has even close to everything figured out. It's like a jigsaw puzzle the size of a gymnasium.
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Old 01-31-2008, 07:00 AM   #6
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Quote:
Originally Posted by Tea cups View Post
It's like a jigsaw puzzle the size of a gymnasium.
This actually made me laugh, as this sums up my understanding of the whole tuning thing, as current!

I just bought Greg Banish's book, so hopefully, that will shed some more light on it for me. It seems to be highly recommended from lots of you guru-types.
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Old 01-31-2008, 10:24 AM   #7
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Quote:
Originally Posted by bchslap View Post
This actually made me laugh, as this sums up my understanding of the whole tuning thing, as current!

I just bought Greg Banish's book, so hopefully, that will shed some more light on it for me. It seems to be highly recommended from lots of you guru-types.
It sums up disassembly and reverse engineering, not tuning really.
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Old 01-31-2008, 12:18 PM   #8
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Quote:
Originally Posted by gabedude View Post
It sums up disassembly and reverse engineering, not tuning really.
His book or the statement?

I'm looking for some good books on the subject (disassembly and reverse engineering), any links?
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Old 01-31-2008, 12:54 PM   #9
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Quote:
Originally Posted by ExpO View Post
His book or the statement?

I'm looking for some good books on the subject (disassembly and reverse engineering), any links?
That book talks more about tuning.

Amazon has many books on reverse engineering and disassembly (which is not a car specific thing, it is just software).
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Old 02-02-2008, 09:56 PM   #10
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Default

installed the knocklite today, after spraypainting the housing flat black.

attn: turboxs! nobody wants to mount a shiny chrome-like lipstick tube in their cabin!

i'll have a pic shortly, but it looks pretty clean now that its black and it does its job, so mission accomplished.
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Old 02-02-2008, 10:27 PM   #11
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I just installed one too. Now to figure out which sensitivity setting to put it on.
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Old 02-02-2008, 11:35 PM   #12
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Quote:
Originally Posted by Wrinkleboi View Post
installed the knocklite today, after spraypainting the housing flat black.

attn: turboxs! nobody wants to mount a shiny chrome-like lipstick tube in their cabin!

i'll have a pic shortly, but it looks pretty clean now that its black and it does its job, so mission accomplished.
I wonder if they would sell it without the light. I would definitely just ditch their light and run it to some led's around the cluster.
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Old 02-02-2008, 11:47 PM   #13
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well they've got a small computer board shoved inside the housing to take care of the filtering tasks, so its more than just a simple light.

i had considered mounting the housing behind the dash and just running an external LED and flush mounting it, but its not so simple. the back of the housing unscrews and inside you'll find the board slid inside but caked with silicone / epoxy in kind of a mess. getting all the way to the front of it where the LED is mounted would be a challenge. doable, probably? but i didnt want to mess with it.
plus, the LED is mounted behind a sort of projector lens to really beam you in the face when it goes off, so i dont mind it in its original configuration.
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Old 02-03-2008, 02:44 AM   #14
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here she is... little out of focus but you get the idea.

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Old 02-03-2008, 04:14 PM   #15
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I see...

That looks much better than the bling bling chrome.
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Old 02-03-2008, 04:41 PM   #16
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Quote:
Originally Posted by Wrinkleboi View Post
installed the knocklite today, after spraypainting the housing flat black.

attn: turboxs! nobody wants to mount a shiny chrome-like lipstick tube in their cabin!

i'll have a pic shortly, but it looks pretty clean now that its black and it does its job, so mission accomplished.
Quote:
Originally Posted by mike280 View Post
I just installed one too. Now to figure out which sensitivity setting to put it on.
How did oyu guys installed the KL??? Tapped/soldered/but connectors???
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Old 02-03-2008, 06:00 PM   #17
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Quote:
Originally Posted by Wrinkleboi View Post
here she is... little out of focus but you get the idea.

Yes, the chrome ain't going anywhere near my car.
I used some extra CF vinyl I had laying around from my Honda days.

As far as mounting I just have it on the steering colum cover where the WRX gets it's boost gauge. Used double sided adhiesive foam tape.
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Old 02-03-2008, 06:36 PM   #18
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Soldered into the ecu harness. Mounted in the center vent.
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Old 02-04-2008, 02:26 AM   #19
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mine is also mounted on the steering column where the factory boost gauge would go. now that its black it doesn't stick out like a sore thumb so i think i like it there.

the wiring was spliced at the ecu and soldered for a sure connection.

although this thread related to enginuity and its ability to indicate knock visually/audibly, i'm wondering if i should have posted this in a more general forum for others looking. if a mod sees this and agrees feel free to move it, or i guess its fine here as well.
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Old 02-04-2008, 08:16 AM   #20
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Dont forget to adjust the sensitivity, mine was picking up slight vibration an dgiving false knock flashes
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Old 02-04-2008, 08:49 AM   #21
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what method is everyone using to adjust the sensitivity on these? just going by ear or logging? i have a difficult time hearing knock over the exhaust sometimes and i'm still learning how to see it in the logs.
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Old 02-04-2008, 03:41 PM   #22
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my car just had a lot of upgrades put on and its not tuned yet so i am not going to calibrate the knocklite yet... dont want to hold it at redline even in neutral.
when i do calibrate it i was planning to adjust it so it detects knock just about the same amount as my enginuity logger does. sounds like people are having luck with the sensitivity between 5 and 7 so i'll start there and adjust if need be.
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Old 02-04-2008, 03:59 PM   #23
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I had one tapped into the knock sensor signal at the ecu on my car. I was getting random knock counts on my logger (not the knocklite) with the knocklite connected. Unhooked it and they went away. I tested it a few times. I'm not letting anything touch my car that has the ability to mess with the way it detects knock.
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Old 02-04-2008, 05:48 PM   #24
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i see what you're saying, but based on the fact that there are hundreds or maybe thousands of them out there and i've only heard good things, i think its likely that your install was to blame for this one.
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Old 02-04-2008, 06:08 PM   #25
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Maybe it was the duct tape I used. Really though, I bought it used so there could have bee something up with it.
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